CIRCUIT FOR ENERGISING A GAS DISCHARGE LAMP.
    1.
    发明公开
    CIRCUIT FOR ENERGISING A GAS DISCHARGE LAMP. 失效
    电路是否能量的气体放电灯喂养。

    公开(公告)号:EP0016756A4

    公开(公告)日:1980-10-15

    申请号:EP79900097

    申请日:1978-12-28

    申请人: DATAPOWER

    摘要: In a gas discharge lamp, when the current through the inductor (17) has increased to a point where the voltage drop across the resistor (15) exceeds the voltage of the reference source (23, 24), the comparator amplifier (20) triggers the monostabile multivibrator (18) causing the solid state switching device (14) to be turned off. This acts to collapse the magnetic field in the inductor (17) thereby causing a large flyback voltage to appear across the lamp (11) sufficient to light the lamp. At the end of the predetermined time period of the low output state of the monostabile multivibrator (18), its output turns the solid state switching device (14) on, allowing current to flow from the power supply (16) through the inductor (17) and the lamp (11), thereby maintaining the lamp in the lit state and increasing the magnetic field in the inductor (17). The current flow through the lamp, when the solid state switching device (14) is on, is in the opposite direction from the current flowing through the lamp when the solid state switching device is off.